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Issue metadata

Status: WontFix
Owner: ----
Closed: Jul 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.4%-10.3% regression in memory.top_10_mobile_stress at 441032:441036

Project Member Reported by primiano@chromium.org, Jan 4 2017

Issue description

See the link to graphs below.
 
Cc: mvstan...@chromium.org
Owner: mvstan...@chromium.org

=== PERF REGRESSION ===


=== Auto-CCing suspected CL author mvstanton@chromium.org ===

Hi mvstanton@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : [Turbofan] Make GenericLowering operate concurrently.
Author  : mvstanton
Commit description:
  
R=epertoso@chromium.org
BUG= 5428 

Review-Url: https://codereview.chromium.org/2607243002
Cr-Commit-Position: refs/heads/master@{#42003}
Commit  : a93aab375a0ecf938128fe097b8b6abd429bb364
Date    : Fri Dec 30 14:03:54 2016


===== TESTED REVISIONS =====
Revision                       Mean      Std Dev  N  Good?
chromium@441033                12245527  127526   6  good
chromium@441034                12268056  167275   6  good
chromium@441034,v8@a93aab375a  12740424  84274.9  6  bad    <--
chromium@441034,v8@21443fab7c  12769133  149608   6  bad
chromium@441035                12735456  140137   6  bad
chromium@441036                12736336  61248.2  6  bad

Bisect job ran on: android_nexus5X_perf_bisect
Bug ID: 678308

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http.en.m.wikipedia.org.wiki.Science memory.top_10_mobile
Test Metric: memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/foreground/http_en_m_wikipedia_org_wiki_Science
Relative Change: 4.01%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5X_perf_bisect/builds/1033
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8991373700264665760


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5284388978294784

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : [Turbofan] Make GenericLowering operate concurrently.
Author  : mvstanton
Commit description:
  
R=epertoso@chromium.org
BUG= 5428 

Review-Url: https://codereview.chromium.org/2607243002
Cr-Commit-Position: refs/heads/master@{#42003}
Commit  : a93aab375a0ecf938128fe097b8b6abd429bb364
Date    : Fri Dec 30 14:03:54 2016


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev  N  Good?
chromium@441033                5582057  206848   6  good
chromium@441034                5643457  150713   6  good
chromium@441034,v8@a93aab375a  6165849  161537   6  bad    <--
chromium@441034,v8@21443fab7c  6088261  194894   6  bad
chromium@441035                6161839  148352   6  bad
chromium@441036                6138625  190877   6  bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 678308

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http.en.m.wikipedia.org.wiki.Science memory.top_10_mobile
Test Metric: memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/background/after_http_en_m_wikipedia_org_wiki_Science
Relative Change: 9.97%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/2347
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8991373687356295648


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5795985618370560

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : [Turbofan] Make GenericLowering operate concurrently.
Author  : mvstanton
Commit description:
  
R=epertoso@chromium.org
BUG= 5428 

Review-Url: https://codereview.chromium.org/2607243002
Cr-Commit-Position: refs/heads/master@{#42003}
Commit  : a93aab375a0ecf938128fe097b8b6abd429bb364
Date    : Fri Dec 30 14:03:54 2016


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev  N  Good?
chromium@441034                5349787  11535.1  6  good
chromium@441034,v8@a93aab375a  5877281  26820.4  6  bad    <--
chromium@441034,v8@21443fab7c  5871539  16607.4  6  bad
chromium@441035                5887680  51177.9  6  bad

Bisect job ran on: android_nexus5X_perf_bisect
Bug ID: 678308

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http.en.m.wikipedia.org.wiki.Science memory.top_10_mobile
Test Metric: memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/background/after_http_en_m_wikipedia_org_wiki_Science
Relative Change: 10.05%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5X_perf_bisect/builds/1032
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8991373724473832640


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5829235912998912

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!
Cc: u...@chromium.org
 Issue 678578  has been merged into this issue.
Status: WontFix (was: Untriaged)
This alert was found before M-60 branched. Closing as WontFix as this is believed to either be invalid or non-reproducible.

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